Home / 128,575.20-192,992.40-62,068.80

Finding the Fourth Proportional to 128,575.20, 192,992.40 and 62,068.80

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Solution

The fourth proportional to 128,575.20, 192,992.40 and 62,068.80 is: 93,165.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,575.20 : 192,992.40 = 62,068.80 : x
  2. Step 2: Convert to fraction form
    128,575.20/192,992.40 = 62,068.80/x
  3. Step 3: Cross multiply
    128,575.20x = 192,992.40 × 62,068.80
  4. Step 4: Simplify right side
    128,575.20x = 11,978,806,677.12
  5. Step 5: Solve for x
    x = 11,978,806,677.12/128,575.20
  6. Step 6: Final answer
    x = 93,165.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.